<?php

/**
 * UserIdentity represents the data needed to identity a user.
 * It contains the authentication method that checks if the provided
 * data can identity the user.
 */
class UserIdentity extends CUserIdentity
{
public $_id;
	/**
	 * Authenticates a user.
	 * The example implementation makes sure if the username and password
	 * are both 'demo'.
	 * In practical applications, this should be changed to authenticate
	 * against some persistent user identity storage (e.g. database).
	 * @return boolean whether authentication succeeds.
	 */
	public function authenticate()
	{
        $user=User::model()->find('LOWER(username)=?',array(strtolower($this->username)));
        if($user===null){
            $this->errorCode=self::ERROR_USERNAME_INVALID;
        }
        else if(!$user->validatePassword($this->password)){
            $this->errorCode=self::ERROR_PASSWORD_INVALID;
        }
        else
        {
            $this->_id=$user->id;
            $this->username=$user->username;
            $this->setState('lastLogin', date("m/d/y g:i: A", strtotime($user->last_login_time)));
            $user->saveAttributes(array(
                                       'last_login_time'=>date("Y-m-d H:i:s", time()),
                                  ));
            $this->errorCode = self::ERROR_NONE;
        }
        return $this->errorCode == self::ERROR_NONE;
	}
    public function getId()
    {
        return $this->_id;
    }
}